Determine the number of significant figures in the following measurements a. 34.50698 g
b. 30.00 mL
c. 0.0008 g
d. 125. 0 °C

a) 7

b) 4

c) 1

d) 4

Explanation:

Significant figures:

All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

Leading zeros are not consider as a significant figures. e.g. 0.03 in this number only one significant figure present which is 3.

Zero between the non zero digits are consider significant like 104 consist of three significant figures.

The zeros at the right side e.g 2400 are also significant. There are four significant figures are present.

A) 34.50698 g

In this measurement there are 7 significant figures.

B) 30.00 mL

There are 4 significant figures.

c) 0.0008 g

There is only one significant figure which is 8.

d) 125.0 °C

There are 4 significant figures.

i have no clue hope you find the answer

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.